Guide shoe and climbing system for use in the building sector

ABSTRACT

A guide shoe ( 16 ) for a climbing system for use in the building sector comprises at least one guide jaw ( 86 ) which can be displaced in the horizontal direction and can be pivoted about a horizontal axis. A climbing system comprises: at least one such guide shoe; at least one scaffold unit which can be guided and/or suspended in at least one guide ( 16 ) on a structure; and at least one lifting drive which can be releasably fitted directly on discrete mounts ( 20 ) on the structure and which can be switched between a first operating mode in which the scaffold unit can be raised and a second operating mode in which the lifting drive can be raised.

FIELD OF THE INVENTION

The invention relates to a guide shoe and a climbing system for use in the building sector.

In particular for the construction of multi-storey, preferably particularly high buildings, the use of self-climbing systems in the building sector is known. These are provided with the formworks required for the construction of vertical walls of the building. As soon as the newly constructed walls have cured sufficiently, lifting drives are supported on these by means of suitable profiles in order to raise the so-called scaffold units bearing the formworks so that the vertical walls are able to “grow” further in an overlying region. While these walls are constructed, the drives of the scaffold unit “follow” upward in order to raise the scaffold unit from the newly constructed section, as soon as this has cured sufficiently.

BACKGROUND OF THE INVENTION

A system of this kind is known from U.S. Pat. No. 4,962,828. In this case, the scaffold unit does not necessarily comprise formworks but, for example, a safety net and/or platforms projecting outward from the structure to be constructed for access to the structure to be constructed including to the floor to be constructed therein. The last named elements are applied to the scaffold unit. Further profiles can be attached to individual points of the structure and a switchable drive is provided to raise either the scaffold unit or the profiles provided for fastening to the structure.

The applicant knows of a climbing formwork system designated SKE with which vertical profiles on which the drives for raising the scaffold unit can be supported can be fastened to the structure. In an alternative operating position, the drives are supported on the scaffold unit which at this time is suspended and/or anchored on the structure in order in this way to be able to raise the vertical profiles into a new section.

SUMMARY OF THE INVENTION

The invention is based on the object of providing a guide shoe and a climbing system for use in the building sector which has been improved with regard to efficient assembly.

This object is achieved by means of the guide shoe described in claim 1 and the climbing system equipped therewith. Preferred developments are described in the further claims.

The possibility of disengaging a guide from the scaffold unit of a climbing system is achieved in a favourable way in that the guide shoe, which hereinafter will also be referred to as a guide, comprises at least one guide jaw which can be displaced in the horizontal direction and pivoted about a horizontal axis, which encompasses a profile, for example a T-, I- or U-profile, a part or section of a profile. For example, at least one profile provided on the scaffold unit can be a T or I-profile, the horizontal (looking at the letter “T”) limb of which extends parallel to the outer side of the structure and directed toward this. In this case, the guide jaw can grip this limb from behind in the region of the vertical limb of the “T” and be pulled out of engagement by a horizontal displacement and withdrawn by pivoting about an extensively horizontal axis. A further advantage of a pivotable attachment of at least one guide jaw to the guide consists in the fact that discrete stresses can be avoided when the guide can be attached pivotably to a mount on the structure. Namely, as will be described in the following with reference to the drawings, when the scaffold unit is supported on the guide, tilting takes place in such a way that the guide (viewed in cross section) lies discretely or (viewed three-dimensionally) along a line on the profile and high stresses can occur here. This can advantageously be avoided by a guide jaw provided pivotably on the guide.

The guide shoe can be provided on a lifting drive of the climbing system. Furthermore, the guide shoe can be attached to a wall shoe attached to the structure and/or a scaffold unit of the climbing system can be guided on the guide shoe.

It has further been found to be favourable to embody the distance between a swivel axis, about which the guide jaw can be pivoted, and an outer end of the guide jaw smaller than the distance between the swivel axis and a fastening between the guide and the wall shoe. In an advantageous way, this prevents the fastening between the guide and the wall shoe from impeding the swivelling of the guide jaw.

Therefore, a guide shoe of this kind effects in an efficient manner the direct attachment of the lifting drives to the mounts of the structure and/or the guide of the scaffold unit, which is in particular of advantage when this is raised. Furthermore, the following features are advantageous, both in their own right and in combination with further features: the provision of two pawls or bearing bolts with respective guides as described below; the rotatable mounting of the guide shoe to a wall shoe; alignment with the rotatable mounting, by means of a spring or another resilient element such as a rubber buffer for the two-dimensional support of the guide shoe, as described in more detail below; the guidance of guide claws or jaws on the guide shoe, which takes place in some regions, for example by a square or another polygon, in a non-pivotable way, and in some regions pivotably in order to be able to swivel the guide claws, following axial displacement, as will be described below in more detail with reference to FIG. 7.

The climbing system described herein, which is preferably a self-climbing system and hereinafter described as such, comprises at least one scaffold unit, which can be guided and/or suspended in at least one guide on a structure. Attached to the scaffold unit are the work platforms, formworks and the like necessary for the tasks to be performed from the scaffold unit.

It should be stressed with respect to the scaffold unit that, according to the invention, it only has to comprise bearing profiles in one plane. Even though further bearing profiles can be provided, the scaffold unit can be designed particularly simply and easily due to the fact that only one plane with bearing profiles is provided which is in particular provided close to the structure in order to keep the force and torques caused by the introduction of the vertical forces into the structure low. The guides, in which the scaffold unit can be guided and/or suspended, can for example be a wall shoe attached to the structure. In particular, at present, preferably, the scaffold unit should be designed to be suspended in an upper region on the structure. In a lower region, the guide can be provided on a so-called guide shoe, which, for example can be attached to a further wall shoe and which should be considered to be a constituent of the lifting drive described below.

According to the invention, the self-climbing system comprises at least one lifting drive which may be attached directly to discrete mounts on the structure. In an advantageous way, the drive forms a single further, second, vertical plane in addition to the vertical plane of the scaffold unit bearing profiles. In particular, the drive has no elements extending parallel to each other in the lifting direction. When the drive may be attached directly to the structure, for example by means of one or more guide shoes, which may be attached, for example, to wall shoes of the building, no additional vertical profiles are required as was always the case with the prior art. The self-climbing system according to the invention can have a particularly simple design. Only discrete mounts, such as, for example, wall shoes, are to be provided on the structure. The only thing located between these discrete mounts and the scaffold unit is the drive, including optionally provided guide shoes without a further vertical plane being required. This enables the self-climbing system to be constructed with particularly little effort.

In addition, the lifting drive which can be attached releasably to the structure can be switched between a first operating mode, in which the scaffold unit can be raised, and a second operating mode, in which the lifting drive can be raised. As a result, the desired climbing can be achieved in an efficient manner with, for example, no crane being required to raise either the scaffold unit or the drives provided. In this context, it is in principle conceivable that the lifting drive only operates in the first operating mode between the mounts provided on the structure and the scaffold unit, while in a second operating mode it is dismantled and raised by being taken by workers into a higher region. In this case, the advantage according to the invention is manifested in the fact that the drive can be kept small and light enough for this process to be performed by workers with a reasonable amount of effort.

It is noted with respect to the climbing system that it also displays advantages without the guide shoe and correspondingly should be considered to be a subject matter of the application in its own right. This applies to any embodiments of the climbing system with one or more of the features described above and/or below.

For the engagement between the lifting drive and the scaffold unit, it has been found to be advantageous to use protruding climbing cams. With a simple construction, climbing cams of this kind offer the necessary areas required for support during the respective lifting action. However, it should be mentioned that the invention can also be implemented with engaging sections which are embodied as recesses, as openings, for example in a perforated profile, as projections, for example on a gear rack, or in another way.

Furthermore, it is currently preferable that at least one guide can be disengaged from the scaffold unit. This has advantages in that the lifting drive as a whole can be separated from the scaffold unit and hence can for example be brought manually into a higher region. This facilitates a so-called partially hydraulic operating mode, in which the lifting drives are only operational when the scaffold unit is raised. Furthermore, due to removable lifting drives, a favourable combination with an operation in which the raising of the scaffold unit is performed at least partially by a crane is conceivable. In this context, it is mentioned that the disengagement of the guide from the scaffold unit in particular permits the removal of the drive from the scaffold unit when this extends with one or more profiles in the region of the guide. The measure described also means it is also conceivable that the drive could be removed at such a time while otherwise it would be necessary to wait for a time at which the scaffold unit has climbed up high enough so as to no longer be in the region of the guide, which can then be removed from the mount on the structure, for example the wall shoe.

For those elements of the lifting drives which transfer the lifting forces to the scaffold unit, it has been found to be favourable to use at least one pawl and/or at least one bearing bolt. Preferably, the pawl or the bearing bolt is subject to gravitational force in the first operating mode and is subject to spring force in the second operating mode. Obviously, this may also be implemented the opposite way round so that the pawl or the bearing bolt is subject to spring force in the first operating mode and subject to gravitational force in the second operating mode or subject to gravitational force in both operating modes or subject to spring force in both operating modes.

In this context, it further advantageous for at least two pawls or bearing bolts to be disposed one on top of the other in the lifting direction on a drive. This enables in an advantageous way a further subdivision of the “stages” during the lifting movement of the scaffold unit or the drives. This graduation is first defined by the engagement elements on the scaffold unit, for example the distances between the climbing cams. If, however, two or more pawls or bearing bolts are disposed on the guides, optionally the one or the other pawl or the one or the other bearing bolt can engage with a specific climbing cam in that the “division” is finer. For example, the distance between the climbing cams 22 can be 300 mm in each case, while the two bearing bolts 80 are provided with a distance of 150 mm so that an overall division of 150 mm results. Moreover, separate pawls and/or bearing bolts can be provided for the first or second operating mode.

In the case of bearing bolts, it has been found to be advantageous to provide at least one guide contour comprising one lower flat and/or one upper steep section. The upper steep section permits the use of a bearing bolt subject to gravitational force, which in this region falls rapidly downward due to the steep embodiment of the guide contour. In an advantageous way, a lower flat region enables the easy deflection of the bearing bolt, which is necessary if, as will be described in more detail below with reference to the drawings, the climbing cams of the scaffold unit have to pass by the bearing bolts, which is achieved by the latter being deflected at least temporarily.

It is in principle conceivable to design in each case a single pawl or one single bearing bolt in such a way that both operating modes are possible. However, at present it is preferable for least one locking pawl to be provided which in the first operating mode is preferably locked and in the second operating mode ensures that the drive is “pulled up” by a support by means of the locking pawl on the scaffold unit.

For operational safety, at present it is further preferable that at least one drive is held and/or loaded by a mount and/or the gravitational force in the direction of the scaffold unit.

For the design of the scaffold unit, it should be borne in mind that this can comprise and/or bear a significant weight which can only be transferred through the structure. Consequently, the weight forces and other forces acting at a distance to the structure tend to deform the scaffold unit “away from the structure”. Therefore, it has been found to be favourable for the scaffold unit to comprise at least one prestressable support in a region remote from the structure. This support can prestress the scaffold unit “in the direction of the structure” and keep the other deformation that occurs as a result of the action of the forces low. A rail for the protection of the workers located on each of the platforms of the scaffold can be attached to a support of this kind. The described support further enables zero backlash, even if, as described in more detail below, the self-climbing system according to the invention comprises a plurality of vertical profiles connected to each other. In addition, a support of this kind can be used to adapt the scaffold unit to inclined portions of a building in an advantageous way.

In an advantageous way, the support between individual levels of the scaffold unit can be adjustable in that it comprises a plurality of fastening points by means of which it may be attached to a plurality of levels of the scaffold unit. This permits the simple adaptation of the scaffold unit and the levels and platforms provided thereon to different storey heights within a structure.

The fastening of the support can be performed for example by means of an eccentric spindle. It is mentioned both with respect to the fastening by means of the eccentric spindle and to the above-described support as such that these both display their advantages in their own right or combined with each other, but not necessarily on the climbing system according to the invention. Therefore, a support with one or more of the features described above and/or below and the eccentric spindle disposal also with one or a plurality of the features described above or below in its own right and also a combination of the support and spindle, but without the self-climbing system according to the invention, should also be considered to be subject matter of the application.

The self-climbing system according to the invention can, in a final condition, comprise a considerable extension in the vertical direction. In order to simplify the construction of the self-climbing system for its final condition, this can comprise two or more vertical profiles which are rigidly connected to each other. At the start of the climbing process, the self-climbing system can be operated with a single vertical profile. As soon as this is located at a certain height above the foundation, a further vertical profile can be attached, at first in an oblique disposal and then, when this is located between the climbing system raised to a certain height and the ground, connected in a rigid manner. A vertical profile divided in this way enables the scaffold unit to be also provided with a “kink” if necessary for example in the direction of the structure, in order to permit corresponding structural geometries.

For the operation of the self-climbing system, it has furthermore been found to be advantageous if the scaffold unit comprises at least one support unit for the horizontal support of the scaffold unit on the structure. A support unit of this kind enables the scaffold unit for the guide shoe to become free so that it can be raised efficiently and reliably.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is described in more detail below with reference to an example of an embodiment shown in the drawings which show:

FIG. 1 a side view of the self-climbing system according to the invention in the first operating mode

FIG. 2 a side view of the self-climbing system according to the invention in the second operating mode

FIG. 3 a side view of a part of the drive in the second operating mode

FIG. 4 a rear view of a part of the drive in the second operating mode

FIG. 5 a side view of the drive in an alternative embodiment

FIG. 6 a side view of a guide and

FIG. 7 a top view of the guide shown in FIG. 6.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION

The self-climbing system 10 shown in FIG. 1 in a side view substantially comprises a scaffold unit 12 and a plurality of drives 18 provided along a structure 14, of which one drive 18 is identifiable in FIG. 1. FIG. 1 shows the self-climbing system 10 in a phase in which it is raised by the drives 18 in order to create a further section above the current uppermost construction stage. To this end, provided in an uppermost region of the scaffold unit 12 is a formwork carriage 30 that can be moved extensively in the horizontal direction with one or more formworks 32, a platform 34, various rails 36 and a support 38 for adjusting the formwork. As can be identified in the left-hand region of FIG. 1, the formwork 32 can already be used to create different construction stages. As soon as the concrete in the uppermost construction stage has cured sufficiently, a wall shoe 20.3, for example, in which the scaffold unit 12 can be suspended in its upper region, can be anchored thereto. FIG. 2 shows this suspended condition.

It may be further identified in FIG. 1 that, in the case shown, the scaffold unit 12 comprises two vertical profiles 26.1, 26.2. which can be designed, for example, as T-profiles or I-profiles. The two vertical profiles 26.1, 26.2 are connected rigidly to each other. In particular, in a condition, in which the upper vertical profile 26.2 only has to be slightly raised from the ground, the lower vertical profile 26.1, can first be brought pivotably in an oblique alignment extending away from the structure 14 and then rigidly connected to the upper vertical profile 26.2 if the latter has been sufficiently raised so that the lower vertical profile 26.1 is located in a vertical alignment of the same between the upper vertical profile 26.2 and the ground.

In the example shown, the support for an upper beam 42, on which the formwork carriage 30 is located and an underlying platform 44 is provided by a support 24.2, which in the case shown is aligned obliquely or diagonally. As can be identified in the lower region of the support 24.2, this can comprise numerous fastening openings in order to be able to adapt it to different distances between the upper beam 42 and the platform 44. In the case shown, the fastening to platform 44 is performed by an eccentric spindle 46. Furthermore, the support 24.2 can be prestressed. This prestressing is usually performed in the direction of the structure 14, that is counterclockwise, in FIG. 1, in order to counteract the weight forces present due to components in the upper region of the scaffold unit 12 which have to be transferred into the structure 14 without the risk of significant deformation of the vertical profiles 26, away from the structure. In the case shown, a further support 24.1 of this kind is shown between the platform 44 and a lower platform 48. It is mentioned that the vertical profiles 26 form the only vertical plane in the region of the scaffold unit 12.

The only further vertical plane is formed by the drive 18. However, as described in more detail below, this may be attached to individual discrete mounts 20 on the structure 14 and does not require any additional vertical plane, such as, for example, a vertical profile which can be attached to the structure. The drive 18 comprises a lower guide shoe 16.1, an upper guide shoe 16.2, which can each be attached releaseably to wall shoes 20.1, 20.2 a climbing shoe 50, which provides engagement with the scaffold unit 12, a lifting cylinder 52 and a guide rod 54 extending above the climbing shoe 50. In the condition shown in FIG. 1, if the drive is anchored to the structure 14 and the scaffold unit 12 is to be raised, the lifting cylinder 52, which is supported by the lower wall shoe 20.1 on the structure, is extended, in order to raise the scaffold unit 12 by means of the engagement between the climbing shoe 50 and the scaffold unit 12. In the case shown, a plurality of climbing cams 22 are provided on the vertical profiles 26 of the scaffold unit 12 for this purpose. As described below in more detail with reference to FIG. 2, the climbing shoe 50 comprises at least one pawl 56 for engagement with the climbing cams. If the lifting cylinder 52 is extended, the guide rod 54 is pushed by the upper guide shoe 16.2 attached to the wall shoe 20.2.

If the scaffold unit 12 is pushed into the final condition, in which it is suspended with the upper region on the uppermost wall shoe 20.3, as described in more detail below, the climbing shoe 50 is re-disposed in such a way that there is no longer engagement with the undersides of the climbing cams. The guide rod 54 is attached to the upper guide shoe 16.2 so that the upper guide shoe 16.2 is raised on the extension of the lifting cylinder 52. This also brings the climbing shoe 50 into a higher position, in which, as described in more detail below, it can be supported on the upper side of a climbing cam in order to pull the lower guide shoe upward on the retraction of the lifting cylinder 52. This was previously released from the wall shoe 20.1 in that the support unit 28 presses the scaffold unit away from the structure in direction of the arrow A so that the scaffold unit 12 no longer presses in a direction against the arrow A onto the guide 16.1. As mentioned, this can be released from the wall shoe 20.1 and is pulled upward on the retraction of the lifting cylinder 52.

The raising of the drive 18 is shown in FIG. 2. As can be identified in FIG. 2, the scaffold unit 12 is suspended on the uppermost wall shoe 20.3 and the lifting cylinder 52 is in retracted condition in the situation shown. This means that, as shown in more detail in FIG. 4, the climbing shoe 50 is supported on the upper side of a climbing cam in order to pull the lower guide shoe 16.1 upward. The lower guide shoe 16.1 is then supported on the upper side of a climbing cam and, by the extension of the lifting cylinder 52, pushes the climbing shoe 50 further upward so that the climbing shoe 50 can be supported in an upper region in order to pull the lower guide shoe 16.1 after it again. These processes are repeated until the upper guide shoe 16.2 can be attached to the upper wall shoe 20.3 and the lower guide shoe 16.1 to the (middle) wall shoe 20.2. This raising of the drive 18 in the second operating mode can be performed while a further wall section is created in an upper region by means of the formwork 32. As soon as this has cured and the situation is substantially as shown in FIG. 1, the scaffold unit can be raised again into a higher section.

FIG. 3 shows in detail a pawl 56 of the climbing shoe 50, which, in the first operating mode in which the scaffold unit 12 is raised, is subject to gravitational force so that, starting from the position shown in FIG. 3, it is turned in the direction of the arrow B so that its upper surface 58 can enter into engagement with the lower surface 60 of climbing cam 22 in order to raise the scaffold unit. In the position shown in FIG. 3, in the second operating mode, the pawl 56 is prestressed for example by a spring so that the upper surface 58 of the pawl 56 can pass by to the side, in FIG. 3 left, of the climbing cam 22, in order to move the climbing shoe 50 upward on the raising of the drive. If, as shown in FIG. 3, the lower region of the pawl enters the region of a climbing cam 22, it is swivelled slightly against the force of the spring in the direction of the arrow B in order to be able to pass by the climbing cam.

FIG. 4 shows how on the raising of the drive 18 support is provided on the upper, flattened sides of the climbing cams 22. To this end, a so-called locking pawl 60 is provided which, according to the depiction in FIG. 4, is prestressed by a spring toward the left and which in the example shown comprises a bevel which extends from bottom left to top right. This bevel can be used to deflect the locking pawl 60 to the right, against the spring force, when the climbing shoe 50 is moved upward and the locking pawl 60 strikes a climbing cam. When the lifting cylinder 52 is extended, the underside of the locking pawl 60 is in engagement with the upper side of a climbing cam in order to pull the lower guide shoe 16.1 after it (see FIGS. 1 and 2) due to the retraction of the lifting cylinder 52.

FIG. 5 shows an alternative embodiment, which differs from the drive in the embodiment shown in FIGS. 1 to 4 in that the drive 18 is not attached to the lower guide shoe 16.1 but is supported directly on the wall shoe 20. In this embodiment, the lower guide shoe 16.1 also has a different design from that shown in FIGS. 1 to 4 and will be explained in more detail with reference to FIGS. 6 and 7. It should be mentioned with regard to the drive 18 that its support on the wall shoe 20 is located at a comparatively large distance from the vertical profile 26 on which the climbing cams 22 are provided. The support of the drive 18 in a region remote from the vertical profile 26 causes the gravitational force to act on the drive 18 with the effect that this “automatically” tips toward the vertical profile 26 and in this way a reliable engagement is guaranteed. At the same time, a mount 62 prevents the drive 18 from being released to the right from the vertical profile. In this case, the climbing cams 22 are designed in such a way that their undersides comprise engagement slots 64 and their upper sides comprise notches 66. The engagement slots 64 are engaged by a bearing bolt 68 on the climbing shoe 50 of the drive 18 in order to raise the scaffold unit by means of the vertical profile 26. The bearing bolt 68 comes into engagement with the notches 66 on the upper side in order to pull the drive 18 upward in the second operating mode. With the embodiment shown in FIG. 5, it is conceivable to remove the drive 18 and carry it manually into a higher section.

FIGS. 6 and 7 show an alternative embodiment of a guide shoe 16. This is attached substantially rotatably by a locking bolt 70, which can comprise a clip 72 and a securing device in the form of a wire rope 74, to the wall shoe 20, which is anchored by an anchor 76 in the structure. A spring or a rubber damper 78 holds the guide shoe 16 attached rotatably to the wall shoe 20 in a suitable position. In the embodiment shown in FIG. 6, the guide shoe 16 does not comprise any pawls as is the case in the embodiment in FIGS. 1 to 4, but, in the case shown, comprises two bearing bolts 80.1, 80.2, which are displaceable in respective guide contours 82.2 and 82.1. FIG. 6 shows a case in which the guide shoe 16 is in engagement with a climbing cam 22 in order to raise the scaffold unit over the vertical profile 26. However, if the guide shoe 16 shown is insofar inactive when the vertical profile 26 is raised past the guide shoe 16, a climbing cam 22 moves from below toward the bearing bolt 80 and deflects this with its bevelled surface 84 (see FIG. 5) in order to be able to pass by the bearing bolt 80. To this end, the guide contour 82 is embodied relatively flat in a lower region (the right-hand region in FIG. 6) in order to facilitate this deflection. In an upper (in FIG. 6 left-hand) region, the guide contour 82 is embodied relatively steep in order to ensure that, due to the action of the gravitational force, the bearing bolt 80 reliably returns to the position shown in FIG. 6 and in which engagement with the climbing cam 22 to raise the scaffold unit is possible.

In the embodiment shown in FIG. 6, two substantially identical bearing bolts 80 which are guided in the respective guide contours 82 are provided to reduce the division. The fact that the distance between the two bearing bolts 80 is smaller than the distance between two adjacent climbing cams (of which only one can be seen in FIG. 6) means that either the upper or the lower bearing bolt can enter into engagement with a respective climbing cam and make the grid, within which engagement is possible, finer.

In FIG. 6, it is also possible to identify a guide jaw 86 attached pivotably on the guide shoe 16. As may be more clearly identified in FIG. 7, this engages from behind to a certain extent with the limb of the I-profile which in the depiction in FIG. 6 extends perpendicularly to the plane of projection. In the case shown in FIG. 6, the vertical profile 26 is supported in a direction away from the guide shoe 16, ie toward the right in FIG. 6, on the guide jaw 86. Due to the fact that this can be pivoted relative to the guide shoe 16, this support is not provided on a (seen in cross-section) individual point, but along a line. In a three-dimensional observation, this means a flat support, which is advantageous for avoiding high spot loads.

As FIG. 7 shows, the pivotable attachment of the guide jaw 86.1, 86.2 can also be used to fold this back from the vertical profile 26 in order to disengage the entire guide shoe 16 from the vertical profile. To this end, as shown in FIG. 7 for the left (according to the depiction in FIG. 7, the upper) guide jaw 86.1, this is first (in the operational position) pushed horizontally, toward the left, according to FIG. 7 upward and then folded back in the direction of the arrow C. The fact that a distance between the axis 88, about which this pivoting takes place, and the front edge (the right edge according to FIG. 7) of the guide jaw 86 is smaller than a distance between the swivel axis 88 and the bolt 70, with which the guide 16 is fastened to the wall shoe 20, enables an obstruction of the bolt 70 to be avoided with folded-back guide jaws 86. Hereby, only the region of the axis 88, which is remote from the guide shoe 16, can be embodied in such a way, for example with a round cross section, that the described swivel movement is permitted. Contrary to this, those regions lying closer to the guide shoe 16, can be provided in angular shapes, for example as a square or another polygon, in order to prevent swivelling in the closed condition of the guide jaws 86 in this region.

Obviously, the details of all the embodiments can be combined with each other. For example, the climbing shoe 50 shown in FIG. 5 can also be provided with bearing bolts according to FIGS. 6 and 7 and the drive according to FIG. 5 can be supported on or attached to the lower climbing shoe 16.1 instead of the wall shoe 20. Similarly, the climbing shoe shown in FIGS. 6 and 7 can be used with all the embodiments in FIGS. 1 to 5. 

1. A guide shoe for a climbing system for use in a building sector comprising at least one guide jaw displaceable in horizontal direction and pivotable about a horizontal axis.
 2. The guide shoe according to claim 1, wherein the guide shoe is attachable to a wall shoe on a structure.
 3. The guide shoe according to claim 2, wherein the distance between a swivel axis of the guide jaw and an outer end of the guide jaw is smaller than the distance between the swivel axis and a fastening between the guide shoe and the wall shoe.
 4. The guide shoe according to claim 1, wherein at least one guide jaw on the guide shoe is guided non-pivotably in some regions and pivotably in other regions.
 5. A climbing system for use in a building sector, comprising at least one scaffold unit, which is guided and/or suspended on a structure in at least one guide shoe according to claim 1; and at least one lifting drive, which is releaseably fitted directly to discrete mounts on the structure and is switchable between a first operating mode in which the scaffold unit is raised and a second operating mode in which the lifting drive is raised.
 6. The climbing system according to claim 5, wherein at least one guide shoe is provided on the lifting drive.
 7. (canceled)
 8. The climbing system according to claim 5, wherein the scaffold unit comprises protruding climbing cams.
 9. The climbing system according to claim 5, wherein at least one guide shoe is disengageable from the scaffold unit.
 10. The climbing system according to claim 5, wherein the lifting drive comprises at least one pawl, which is subject to gravitational force and spring force.
 11. The climbing system according to claim 10, wherein at least two pawls are disposed one on top of the other in lifting direction.
 12. The climbing system according to claim 20, wherein at least one guide contour for the bearing bolt comprises one lower flat and one upper steep section.
 13. The climbing system according to claim 10, wherein at least one pawl is supported on the scaffold unit in the second operating mode.
 14. The climbing system according to claim 5, wherein at least one drive is held and loaded by a mount and the gravitational force in the direction of the scaffold unit.
 15. The climbing system according to claim 5, wherein the scaffold unit comprises at least one prestressable support.
 16. The climbing system according to claim 15, wherein the prestressable support comprises a plurality of fastening points for adjustment between planes of the scaffold unit.
 17. The climbing system according to claim 15 wherein at least one support may be adjusted by an eccentric spindle.
 18. The climbing system according to claim 5, wherein the scaffold unit comprises at least one divided vertical profile, the parts of which are rigidly connected.
 19. The climbing system according to claim 5, wherein the scaffold unit comprises at least one support unit for horizontal support of the scaffold unit on the structure.
 20. The climbing system according to claim 5, wherein the lifting drive comprises at least one bearing bolt, which is subject to gravitational force and spring force.
 21. The climbing system according to claim 10, wherein at least two bearing bolts are disposed on top of each other in lifting direction. 